16641243630 has 96 divisors (see below), whose sum is σ = 47448281088. Its totient is φ = 4013073600.

The previous prime is 16641243629. The next prime is 16641243667. The reversal of 16641243630 is 3634214661.

16641243630 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 12 + 4 + 3 + 630 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145087 + ... + 233093.

It is an arithmetic number, because the mean of its divisors is an integer number (494252928).

Almost surely, 2^16641243630 is an apocalyptic number.

16641243630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16641243630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23724140544).

16641243630 is an abundant number, since it is smaller than the sum of its proper divisors (30807037458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16641243630 is a wasteful number, since it uses less digits than its factorization.

16641243630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88222 (or 88219 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 16641243630 in words is "sixteen billion, six hundred forty-one million, two hundred forty-three thousand, six hundred thirty".